Flowmaster 40 series sound good? - Page 2 - Ford F150 Forum

05-27-2015, 11:12 AM

#11

FlowmasterMufflers

F150 Forum

Join Date: Aug 2014

Location: Santa Rosa, CA

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Quote:

Originally Posted by uzikaduzi

I've owned a few of your mufflers and they make a great sound. while your logic seems to make sense, the performance community doesn't seem to accept it and in the few flow charts i've seen where they compare actual CMF flow at the outlet, (with mufflers of the same inlet size) your products have been quite lower performing than the straight through designed options. I'm sure i could find a few to post, if you'd like a chance to refute their claims. in fairness, i doubt the stock fuel trims are adequate to allow much, if any power gains from any exhaust system.

Exhaust consists of air, heat, burned and unburned gases and sound. Think of exhaust as a tennis ball. Since the valve opens and closes, the exhaust is made up of ‘pulses’, it has a start and an end, not a constant flow. Because of these factors, CFM testing is not a true test of how an exhaust system works. It doesn’t replicate any of these factors. Important things to consider when choosing an exhaust system for your application are: tubing size, rpm range, power level, interior & exterior sound etc. These are all important when it comes to proper exhaust performance.
Flowmaster does extensive testing at our full-time Research & Development facility with a Super Flow engine dyno, 4-wheel drive chassis dyno, race teams, engine builders, etc. for developing mufflers and exhaust systems. Flowmaster mufflers are not only accepted and widely used by racers and the performance community, they are celebrated and were among the first inductees into the Hot Rod Hall of Fame (voted on by automotive aftermarket insiders and every member of SEMA) as one of the Top 10 "Most Significant Speed Parts of All Time".

Last edited by FlowmasterMufflers; 05-27-2015 at 11:16 AM. Reason: added link

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